My theory is based on the Internet. First, people are now exposed to vastly more information that in 80s or 90s. This forges the diversity in taste and segrega

My theory is based on the Internet. First, people are now exposed to vastly more information that in 80s or 90s. This forges the diversity in taste and segregation of pop culture. Second, trends come and go at faster cycle than before. If something on Youtube goes viral, this could be in pop culture for weeks and then vanished in the shadow of another fad.